Apparatus for manufacturing casks.



No. 830,084. PATENTED SEPT. 4, 1906. OGNESLAW (IGNAZ) KOSZTOVITS..

APPARATUS FOR MANUFACTURING GASKS.

- A?PLIGATION FILED JUNI: 29. 1904.

Mme-555: Inventor-- 1m.- Nomus crans cof. wxsumcrou. u. z;

UNTTED STATES PATENT @ERICE OGNESLAW (IGNAZ) KOSZTOVITS, OF KLEIN RIBATZKOE, NEAR ST. PETERSBURG, RUSSIA.

Specification of Letters Patent.

Patented. Sept. 4, 1906.

Application filed June Z9, 1904. Serial No. 214,640.

T0 ir/ZZ whom, it muy concern:

Be it known that I, OeNnsLAw (IGNAZ) Kosz'rovrrs, a subject of the Emperor of Austria-Hungary, residing in Klein Ribatzkoe, near St. Petersburg, Russia, have invented certain new and useful Improvements in Apparatus for Manufacturing Casks and other Hollow Bodies or Structures, of which the following is a specification.

This invention relates to an apparatus for use in connection with the manufacture of hollow bodies-such as cases, boxes, casks, and other hollow bodies or structures of round, oval, angular, or other shape-which are formed of several layers or veneers of wood. These layers of wood are glued together by some suitable binding medium and in such a way that the grain of one layer will cross or be transverse to the grain of another layer. The single or previously-superposed glued layers of wood are bent around a bending-form corresponding to the shape of the article to be produced.

During the forming operation the body is provided with an inner and outer protective cover or mold which firmly incloses the iinished article, the inner cover or mold acting as the drawing-on and drawing-off form and the outer protective cover or mold is coupled with the bending-machine. The bendingbelt is fastened around the bent hollow body in order that the bent-wood plate and the bending-plate are not fastened to the bending-form, but are secured to the inner pro-v tector cover or mold, and the inner cover,

bent-wood plate, and outer cover are simultaneously removed from the machine and all i of the wood-plates are firmly held together under compression and in this manner thoroughly dried, so that no deformity of the wood body can take place, and after the holi low body is thoroughly dry the protective covers are removed.

An embodiment of this invention is shown inthe accompanying drawings, in which- Figure 1 shows a bending-machine at the beginning of the bending or forming operation. Eig. 2 shows the wood plate and the bending-belt wound on the bending-form and the bending-belt secured together in any convenient manner. Eig. 3 shows the bendingmachine after the bent-wood plate with'its inner and outer protective cover or mold are removed, only the bending-form being shown on the main shaft of the machine; and Fig. 4 shows an elevation and a cross-section of the finished article in the protective covers or` molds and which are not removed until the same is thoroughly dry and which prevents the deformation of the finished article.

Similar characters of reference indicate like parts in the figures.

In the present instance the bending block or former 1 is rotatably supported in a frame 2 upon a shaft 3. On the former 1 may be detachably placed a hollow mold 4, said hollow mold taking part in the rotation of the former l, and to it is secured at 5 one end of the bending belt or band 6, the other end being secured ,by means of a chain 7, to a chainwheel 9 at S. The wheel 9 and a band-brake wheel 10 are mounted upon a shaft 12 on a frame 1 1. The one end of the brake-band 13 is passed around the wheel 10 and is secured at 14 to a lever 15, the other end of the band being secured at 16 to another place of this lever. The lever is rotatably supported in the arm 17 of the frame 11 and carries a weight 18, drawing on the brake-band 13 and acting as a brake on the wheels 10 and 9 and the chain 7. The composite wood layers 23 are placed between the periphery of the mold and the band 6, so that when the mold rotates the band, together with the wood, is wound around it, the layers of wood thus being bent around the mold. After the rolling up of the layers of wood and of the band covering them around the former has been completed-that is to say, after the desired hollow body has been formed-the band is secured by means of any suitable closing device, such as hoops pushed over it or a cord tied tightly around it. The parts 19, securing surface of the hollow body. then pulled off laterally from the former 1,

" together with the hollow body, with the band and which compresses the separate layers of wood strongly together and is completely dried in the drying-chamber. As all the layers of wood are pressed firmly one against the other, they cannot separate and the body cannot warp or become deformed. It will be seen that the bending-band is pressed against all the parts of the former With the utmost and the mold a protective cover for the inner The mold 4 is IOO to insure the 'hollow Vbody remaining absolutely fixed in it.

The casing 20 is wdivided 'into two almost' semicylindrical parts. these halves are rotatably mounted on the The lower edges of foot of the frame2ib'ylmeans1of hinges .2!1 and i 22, while the upper edges can be drawn-together by means A.of fany suitable closin de vice. (Not shown.) The sides can t erefore be opened out to facilitate the removal of thefartlcle and mold.

As lthe pull on the band must vary in accordance with lthe'kind of wood` and the thickness of the layers used and :frequently has to vary for thesameplate at different stages of lthe bending, the ,pulll at'the end of .the `bending yprocess having yto lbe specially great, is -necessary to be able to regulate the .tension `ofthe band if the apparatus is Vto .work in a reliable manner. After the layers of wood 'have been wound around thefformer and .be- 'fore the bending-band is secured it must be pressed with, great force, and lfor'that purpose there must be of course an adjustable coun- Vter tension. For `this purpose. according to this invention a 'brake-wheel is used, the Ybrake-bando'f which can be adjusted -to .the 'desired 'tension by means of the weight `18. This arrangementfof brake-wheel vhasl the additional advantage I'that the brake-wheel remains in position after 'the bending Vhas been disconnected from the former and the chain "7. Heretofore a suspended Weight lhas Ibeen .used as a retarding means tozcause the bind- 'ing element 4.to properly compress the bending-strip-against lthe mold Ybut thisfconstruc- 'tion has thedisadvantage that there is necesgsarilyv a reaction tending :bein v bent.

l to unwind the stripv With the .present construction, f

in w' ch lthe weight is supplanted by a fric-11 Ation retarding device, there Vis obviously no.v reactive tendency that would unwind the; -strip as soon as the rotation of the =mold ceased.

Having 'thus described my invention, IE

claimi l. An Vapparatus for shaping and holding .lnshap'e wooden-slabs conslsting of a rotatably-mounted cylindrical former, a mold atv:tachable thereto andfremovable-therefrom, a

bly-mounted cylindrical former, a mold atgage with'the first fastening device and hold lthe binding :element in position round the slab, a chain detachably connected with the said second fastening device and l.a brakewheel for rtensioning said chain.

3. In-a device .of the character-described, the combination withthe mold and the binding element securedby one end to the mold, ofa friction retarding device connected with the binding `element Lfor providing tension during `the winding of the binding element around the mold. y

4. In a device of the character described,

the-combination with the mold and the 'binding element yattached to the mold by one end,

lof a winding-drum,afflexible member secured to the binding element and passed around the drum, andra friction-band engaging -the drum to retard its rotation by said flexible .member duringthe'unwinding of the latter.

5. .Ina device of the character described, .the combination with the tmold andthe lbinding element attached tothe-mold by one'end, of .a winding-dru1n,'-a flexible member .secured yto the binding :element and Vpassed around the drum, and afriction-bandengaging the drum to retard its rotation by fsaid iiexible `member during the unwinding of the latter, and meansfor adjusting the tension-of the friction-b and.

6. Ina device of the character described, thecombination with-the mold and .the binding element attached to the Amold by one end, of a winding-drum, a .flexible .member secured to the binding element rby one .end and :passed around the drum and secured thereto by'its other end, a secondfdrum, alever .pivoted adjacent the drum, -a vfrictionvband passed around the second drum and connected lwith said leverand a weight `vadjusta'ble on saidlever to vary the tension'fof theffriction-bandon the drum.

In Vtestimony whereof @I have hereunto set my hand, in the presence of the .undersigned witnesses, at Berlin,Germany, the 27th day of'May, 1904.

vOGfNESLAW (IGENA'Z) KOSZTOVITS.

-IOO 

